xpertrat | 12f341bc0f65e96848b4dd440afc7f653e883e740adcb677fc4f8b5ba5c38ef2

General

Target

f6eb3ee5a5791580cb437aed0ed50ee7.exe
Size

346KB
MD5

f6eb3ee5a5791580cb437aed0ed50ee7
SHA1

42390aa36dd526141c798849a02dfdebcbd17eb5
SHA256

12f341bc0f65e96848b4dd440afc7f653e883e740adcb677fc4f8b5ba5c38ef2
SHA512

c94f46ffef834d6b00240bd4431f5dc191c75fbfa6b6ed31a7a94a23b93084a0d69d00cf24e66d8b919c8b58de365b70fa3bb461e51c153c7b747f6b0cbc0527

Score

10^/10

xpertrat msn coreentity evasion persistence rat rezer0 trojan

Malware Config

Extracted

Family

xpertrat

Version

3.0.10

Botnet

msn

C2

127.0.0.1:666

194.5.99.136:3135

Mutex

D7X4P1B8-Q5O3-S1E1-N0C3-X4R7E8E2T6P3

Signatures

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral2/memory/1112-4-0x0000000004790000-0x0000000004792000-memory.dmp	coreentity

UAC bypass 3 TTPs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
XpertRAT
XpertRAT is a remote access trojan with various capabilities.
rat xpertrat

XpertRAT Core Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/360-14-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat
behavioral2/memory/360-15-0x0000000000401364-mapping.dmp	xpertrat
behavioral2/memory/360-16-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral2/memory/1112-6-0x0000000004D10000-0x0000000004D43000-memory.dmp	rezer0

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

iexplore.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\D7X4P1B8-Q5O3-S1E1-N0C3-X4R7E8E2T6P3 = "C:\\Users\\Admin\\AppData\\Roaming\\D7X4P1B8-Q5O3-S1E1-N0C3-X4R7E8E2T6P3\\D7X4P1B8-Q5O3-S1E1-N0C3-X4R7E8E2T6P3.exe"	iexplore.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

f6eb3ee5a5791580cb437aed0ed50ee7.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	f6eb3ee5a5791580cb437aed0ed50ee7.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

iexplore.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\D7X4P1B8-Q5O3-S1E1-N0C3-X4R7E8E2T6P3 = "C:\\Users\\Admin\\AppData\\Roaming\\D7X4P1B8-Q5O3-S1E1-N0C3-X4R7E8E2T6P3\\D7X4P1B8-Q5O3-S1E1-N0C3-X4R7E8E2T6P3.exe"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\D7X4P1B8-Q5O3-S1E1-N0C3-X4R7E8E2T6P3 = "C:\\Users\\Admin\\AppData\\Roaming\\D7X4P1B8-Q5O3-S1E1-N0C3-X4R7E8E2T6P3\\D7X4P1B8-Q5O3-S1E1-N0C3-X4R7E8E2T6P3.exe"	iexplore.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	iexplore.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

f6eb3ee5a5791580cb437aed0ed50ee7.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	f6eb3ee5a5791580cb437aed0ed50ee7.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

f6eb3ee5a5791580cb437aed0ed50ee7.exef6eb3ee5a5791580cb437aed0ed50ee7.exe

description	pid	process	target process
PID 1112 set thread context of 420	1112	f6eb3ee5a5791580cb437aed0ed50ee7.exe	f6eb3ee5a5791580cb437aed0ed50ee7.exe
PID 420 set thread context of 360	420	f6eb3ee5a5791580cb437aed0ed50ee7.exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

f6eb3ee5a5791580cb437aed0ed50ee7.exe

pid	process
420	f6eb3ee5a5791580cb437aed0ed50ee7.exe
420	f6eb3ee5a5791580cb437aed0ed50ee7.exe
420	f6eb3ee5a5791580cb437aed0ed50ee7.exe
420	f6eb3ee5a5791580cb437aed0ed50ee7.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

f6eb3ee5a5791580cb437aed0ed50ee7.exeiexplore.exe

description pid process

Token: SeDebugPrivilege 1112 f6eb3ee5a5791580cb437aed0ed50ee7.exe
Token: SeDebugPrivilege 360 iexplore.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

f6eb3ee5a5791580cb437aed0ed50ee7.exeiexplore.exe

pid process

420 f6eb3ee5a5791580cb437aed0ed50ee7.exe
360 iexplore.exe

description	pid	process
Token: SeDebugPrivilege	1112	f6eb3ee5a5791580cb437aed0ed50ee7.exe
Token: SeDebugPrivilege	360	iexplore.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

f6eb3ee5a5791580cb437aed0ed50ee7.exef6eb3ee5a5791580cb437aed0ed50ee7.exe

description	pid	process	target process
PID 1112 wrote to memory of 420	1112	f6eb3ee5a5791580cb437aed0ed50ee7.exe	f6eb3ee5a5791580cb437aed0ed50ee7.exe
PID 1112 wrote to memory of 420	1112	f6eb3ee5a5791580cb437aed0ed50ee7.exe	f6eb3ee5a5791580cb437aed0ed50ee7.exe
PID 1112 wrote to memory of 420	1112	f6eb3ee5a5791580cb437aed0ed50ee7.exe	f6eb3ee5a5791580cb437aed0ed50ee7.exe
PID 1112 wrote to memory of 420	1112	f6eb3ee5a5791580cb437aed0ed50ee7.exe	f6eb3ee5a5791580cb437aed0ed50ee7.exe
PID 1112 wrote to memory of 420	1112	f6eb3ee5a5791580cb437aed0ed50ee7.exe	f6eb3ee5a5791580cb437aed0ed50ee7.exe
PID 1112 wrote to memory of 420	1112	f6eb3ee5a5791580cb437aed0ed50ee7.exe	f6eb3ee5a5791580cb437aed0ed50ee7.exe
PID 1112 wrote to memory of 420	1112	f6eb3ee5a5791580cb437aed0ed50ee7.exe	f6eb3ee5a5791580cb437aed0ed50ee7.exe
PID 420 wrote to memory of 360	420	f6eb3ee5a5791580cb437aed0ed50ee7.exe	iexplore.exe
PID 420 wrote to memory of 360	420	f6eb3ee5a5791580cb437aed0ed50ee7.exe	iexplore.exe
PID 420 wrote to memory of 360	420	f6eb3ee5a5791580cb437aed0ed50ee7.exe	iexplore.exe
PID 420 wrote to memory of 360	420	f6eb3ee5a5791580cb437aed0ed50ee7.exe	iexplore.exe
PID 420 wrote to memory of 360	420	f6eb3ee5a5791580cb437aed0ed50ee7.exe	iexplore.exe
PID 420 wrote to memory of 360	420	f6eb3ee5a5791580cb437aed0ed50ee7.exe	iexplore.exe
PID 420 wrote to memory of 360	420	f6eb3ee5a5791580cb437aed0ed50ee7.exe	iexplore.exe
PID 420 wrote to memory of 360	420	f6eb3ee5a5791580cb437aed0ed50ee7.exe	iexplore.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

f6eb3ee5a5791580cb437aed0ed50ee7.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	f6eb3ee5a5791580cb437aed0ed50ee7.exe

C:\Users\Admin\AppData\Local\Temp\f6eb3ee5a5791580cb437aed0ed50ee7.exe
"C:\Users\Admin\AppData\Local\Temp\f6eb3ee5a5791580cb437aed0ed50ee7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1112

C:\Users\Admin\AppData\Local\Temp\f6eb3ee5a5791580cb437aed0ed50ee7.exe
"{path}"
2⤵
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:420

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\f6eb3ee5a5791580cb437aed0ed50ee7.exe
3⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:360

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Bypass User Account Control

1

T1088

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/360-16-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/360-15-0x0000000000401364-mapping.dmp

Download
memory/360-14-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/420-9-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/420-11-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/420-10-0x00000000004010B8-mapping.dmp

Download
memory/1112-4-0x0000000004790000-0x0000000004792000-memory.dmp

Filesize
8KB

Download
memory/1112-8-0x0000000005390000-0x0000000005391000-memory.dmp

Filesize
4KB

Download
memory/1112-7-0x0000000004DF0000-0x0000000004DF1000-memory.dmp

Filesize
4KB

Download
memory/1112-6-0x0000000004D10000-0x0000000004D43000-memory.dmp

Filesize
204KB

Download
memory/1112-5-0x0000000008E00000-0x0000000008E01000-memory.dmp

Filesize
4KB

Download
memory/1112-0-0x0000000073290000-0x000000007397E000-memory.dmp

Filesize
6.9MB

Download
memory/1112-3-0x0000000004810000-0x0000000004849000-memory.dmp

Filesize
228KB

Download
memory/1112-1-0x0000000000010000-0x0000000000011000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads